2 3 5 15 9 July 8, 2019 16 32 64 128 3x 5 15 x 3 2 9 5x 2 3x 3 15 9x 5 3x 2 3 9x 15 )= 2 3x 5 1 5 3 2 d 15 9 10 d 4 5 x 2 3 )=- 92 15 Calculate 15 5 2 3 9 X 2 3 9 15 x 5 27 2 15 9 x 3 5